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27763 (1991 RN22)
Classification: Main-belt Asteroid          SPK-ID: 2027763
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2084217673116945 4.4014e-08  
a 2.259393407806541 1.2053e-08 au
q 1.78848664069911 9.7767e-08 au
i 4.958569820911714 7.064e-06 deg
node 10.91717288484488 5.8702e-05 deg
peri 291.3783099078839 6.1564e-05 deg
M 90.03068334182373 2.0529e-05 deg
tp 2457090.276810583731
(2015-Mar-08.77681058)
6.9455e-05 JED
period 1240.469849216124
3.40
9.9264e-06
2.718e-08
d
yr
n .2902126159918281 2.3223e-09 deg/d
Q 2.730300174913973 1.4566e-08 au
  Orbit Determination Parameters
   # obs. used (total)      723  
   data-arc span      8853 days (24.24 yr)  
   first obs. used      1991-09-15  
   last obs. used      2015-12-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58831  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:04:49  

Additional Information
 Earth MOID = .778886 au 
 Jupiter MOID = 2.51133 au 
 T_jup = 3.587 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6 mag n/a MPO351018  

27763 (1991 RN22)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RN22 = 1998 UL31 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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